Exerciser



R. w. WOOD EXERCI SER Filed Feb. 11, 1926 IN VE N T R WI+NESSES v IATTORNEY Patented Oct. 9, 1928.

UNITED. STATES PATENT OFFICE.

ROBERT w. WOOD, or ArrLnroN, WISCONSIN.

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. Application filed February 11, 1926. SerialNo. 87,573.

by a pull onthe cords, is rotated in the opposite direction to acquire amomentum, C21-L1S' ing the cords to be againtwisted andeifectivelyshortened with a consequent repetition of the operation anynumber of'times.

By utilizing this principle in an exercising apparatus, the effect ofpulley weights may be obtained accompanied by a torsional stress firstinone direction and then in the otherand, by reason of the spinningweights,

affording interest in an otherwise uninteresting performance.

Another ob ect of the invention is toproe vide an exerciser of'this typeof novel con struction minimizing thewear on the cords and affording aneasy grip for the hand convertible to a wall attachment.

With the above and other objects in view the invention consists in theexerciser as here in claimed and all equivalents.

Referring to the accompanying drawings, in which like characters ofreference indicate the samelparts in. different views,

Fig.1 is a view ofan exerciser constructed in accordance with thisinvention;

Fig. 2 is a view of a pairof such exercisers attached to the wall, and nFig. 3 is a sectional view of theweight or ball. I

In these drawings, 10 indicates the ball or weight, which is preferablyof hard wood or other suitable material and is shaped somewhatresembling a wheel with a heavy periphery reduced at the center, whereprojections or knobs 11 are'formed on the opposite sides. Transverseopenings 12 are formed through these knobs or projections, through whichthe cords 13 are passed, said openings being rounded to avoid wear onthe cords. The ends of the cords 13 are preferably provided withswivel-hooks. or eyes 14 engaging.

spaced notches of hand grips 15. The hand grips may consist of aU-shaped wire meme ber affording these notches for engagement with theends of the cords and termlnatin in eyes in which the handle16 isengaged so t at when the exerciser is be attached to the wall the wiremember may be, sprung off of the, handle and engaged with suitablespaced hooks 17 on the wall orother stationary support. a I

In using a single exerciser both hand grips may be engaged in the handsand, after the ball hasbeenturned to give an initial twist to the cords,by pulling the grips apart the ball is caused to rotate until the cordsare untwisted, whereupon the pull on the grips is released permittingthe momentum'of the ball to rewind the cords and,'in

sodoing, draw the grips closer together. The

action is then repeated, the ball turning in the opposite direction,and. the operation is continued at will, the hands being first movedapart under the yielding resistance of the unwinding cords and thenbeing drawn'together while offering a slight resistance I thereto.

The connection of v by passing them through the rounded openthe cordswith the ball ings of the opposite'knobs 11 is such as to avoid wear onthe cords'and their swivel connectionspermit them to'turn while beingtwisted, thus prolonging their life.

By usingv two of the exercisers and at.-

taching each to the wall or other stationary support, as shown, they mayheoperatedv independently to provide exercise similarto that afforded bypulleysgand' weights, but

with this difference,-ithat the resistance to inward motion and theimpelling force for. outward motion is constantly varying The resistanceto the-inwardstro ke tapers off as the ball acquires speed and theimpelling in motion, it engages the interest of the user.

What I claim asnew and desire to secure by Letters Patentds:

A physical exerciser comprising a ball having its greatest -massperipherally 'disposed and provided with knobs on its oppo .site sides,cords passing through openings in the knobs, swivel connections on theends of the cords, and connecting members having spaced notches engagedby the swivel connections In testimony whereof, I aflix my signature.

ROBERT WM. WOOD.

